My Motorola Droid has not had a signal other than 3g for months. I have shut off switched to airplane mode etc. No 4g and I am in a 4g area. What can I do? I have called the cust. reps. and all they say is to try airplane mode and switch back. Does nothing. Confirmed phone setting is set on cdma/lte. And still nothing when friends right next to me have 4g connection on diff. phones??
Sometimes removing the SIM card and putting it back in will fix connection problems.
Have you tried a factory reset yet? This will erase all data/programs on your phone. Make sure your phone is plugged in, or has at least 50% battery before doing this.
Settings -> Privacy -> Factory data reset.
If the above does not fix your problem, you will probably have to contact VZW or go to the store you bought the phone or a VZW corporate store to RMA the phone. You will probably get a refurbished replacement.